The most well-established and widely used stem cell treatment is the transplantation of blood stem cells to treat diseases and conditions of the blood and immune system, or to restore the blood system after treatments for specific cancers. The US National Marrow Donor Program has a full list of diseases treatable by blood stem cell transplant.
A Whole House Fan is one the Best Energy-Saving Solutions for Your Home. A Whole House Fan (also known as a whole house ventilation system, whole house attic fan or whole house exhaust fan) is a simple & inexpensive method for cooling a home anytime the outdoor air temperature is cooler than inside your home.
Now, let's look at the types of systems. Exhaust-only. All right, let's get this one out of the way first. Using exhaust fans is great for local ventilation of bathrooms, kitchens, garages, and sub-slab areas (for radon control), but it's not a great strategy for whole-house ventilation. It does have some advantages: It's cheap.